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<a name="gst-plugins-base-libs-GstMeta-for-RTP"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-base-libs-GstMeta-for-RTP.top_of_page"></a>GstMeta for RTP</span></h2>
<p>GstMeta for RTP — RTP related GstMeta</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstMeta-for-RTP.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="returnvalue">GstRTPSourceMeta</span></a> *
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#gst-buffer-add-rtp-source-meta" title="gst_buffer_add_rtp_source_meta ()">gst_buffer_add_rtp_source_meta</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="returnvalue">GstRTPSourceMeta</span></a> *
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#gst-buffer-get-rtp-source-meta" title="gst_buffer_get_rtp_source_meta ()">gst_buffer_get_rtp_source_meta</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#gst-rtp-source-meta-append-csrc" title="gst_rtp_source_meta_append_csrc ()">gst_rtp_source_meta_append_csrc</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> *
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#gst-rtp-source-meta-get-info" title="gst_rtp_source_meta_get_info ()">gst_rtp_source_meta_get_info</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#gst-rtp-source-meta-get-source-count" title="gst_rtp_source_meta_get_source_count ()">gst_rtp_source_meta_get_source_count</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#gst-rtp-source-meta-set-ssrc" title="gst_rtp_source_meta_set_ssrc ()">gst_rtp_source_meta_set_ssrc</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstMeta-for-RTP.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta">GstRTPSourceMeta</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GST-RTP-SOURCE-META-MAX-CSRC-COUNT:CAPS" title="GST_RTP_SOURCE_META_MAX_CSRC_COUNT">GST_RTP_SOURCE_META_MAX_CSRC_COUNT</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstMeta-for-RTP.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gst/rtp/rtp.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstMeta-for-RTP.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstMeta-for-RTP.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gst-buffer-add-rtp-source-meta"></a><h3>gst_buffer_add_rtp_source_meta ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="returnvalue">GstRTPSourceMeta</span></a> *
gst_buffer_add_rtp_source_meta (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a> *buffer</code></em>,
                                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> *ssrc</code></em>,
                                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> *csrc</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> csrc_count</code></em>);</pre>
<p>Attaches RTP source information to <em class="parameter"><code>buffer</code></em>
.</p>
<div class="refsect3">
<a name="gst-buffer-add-rtp-source-meta.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>ssrc</p></td>
<td class="parameter_description"><p>pointer to the SSRC. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>csrc</p></td>
<td class="parameter_description"><p>pointer to the CSRCs. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>csrc_count</p></td>
<td class="parameter_description"><p>number of elements in <em class="parameter"><code>csrc</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-buffer-add-rtp-source-meta.returns"></a><h4>Returns</h4>
<p>the <a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a> on <em class="parameter"><code>buffer</code></em>
. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="ix03.html#api-index-1.16">1.16</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-buffer-get-rtp-source-meta"></a><h3>gst_buffer_get_rtp_source_meta ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="returnvalue">GstRTPSourceMeta</span></a> *
gst_buffer_get_rtp_source_meta (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a> *buffer</code></em>);</pre>
<p>Find the <a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a> on <em class="parameter"><code>buffer</code></em>
.</p>
<div class="refsect3">
<a name="gst-buffer-get-rtp-source-meta.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-buffer-get-rtp-source-meta.returns"></a><h4>Returns</h4>
<p>the <a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a> or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> when there
is no such metadata on <em class="parameter"><code>buffer</code></em>
. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="ix03.html#api-index-1.16">1.16</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-rtp-source-meta-append-csrc"></a><h3>gst_rtp_source_meta_append_csrc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_rtp_source_meta_append_csrc (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a> *meta</code></em>,
                                 <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> *csrc</code></em>,
                                 <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> csrc_count</code></em>);</pre>
<p>Appends <em class="parameter"><code>csrc</code></em>
 to the list of contributing sources in <em class="parameter"><code>meta</code></em>
.</p>
<div class="refsect3">
<a name="gst-rtp-source-meta-append-csrc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>meta</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>csrc</p></td>
<td class="parameter_description"><p>the csrcs to append</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>csrc_count</p></td>
<td class="parameter_description"><p>number of elements in <em class="parameter"><code>csrc</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-rtp-source-meta-append-csrc.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if all elements in <em class="parameter"><code>csrc</code></em>
was added, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
</div>
<p class="since">Since: <a class="link" href="ix03.html#api-index-1.16">1.16</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-rtp-source-meta-get-info"></a><h3>gst_rtp_source_meta_get_info ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> *
gst_rtp_source_meta_get_info (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-rtp-source-meta-get-source-count"></a><h3>gst_rtp_source_meta_get_source_count ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gst_rtp_source_meta_get_source_count (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a> *meta</code></em>);</pre>
<p>Count the total number of RTP sources found in <em class="parameter"><code>meta</code></em>
, both SSRC and CSRC.</p>
<div class="refsect3">
<a name="gst-rtp-source-meta-get-source-count.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>meta</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-rtp-source-meta-get-source-count.returns"></a><h4>Returns</h4>
<p> The number of RTP sources</p>
</div>
<p class="since">Since: <a class="link" href="ix03.html#api-index-1.16">1.16</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-rtp-source-meta-set-ssrc"></a><h3>gst_rtp_source_meta_set_ssrc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_rtp_source_meta_set_ssrc (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a> *meta</code></em>,
                              <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> *ssrc</code></em>);</pre>
<p>Sets <em class="parameter"><code>ssrc</code></em>
 in <em class="parameter"><code>meta</code></em>
. If <em class="parameter"><code>ssrc</code></em>
 is <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> the ssrc of <em class="parameter"><code>meta</code></em>
 will be unset.</p>
<div class="refsect3">
<a name="gst-rtp-source-meta-set-ssrc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>meta</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-GstMeta-for-RTP.html#GstRTPSourceMeta" title="struct GstRTPSourceMeta"><span class="type">GstRTPSourceMeta</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>ssrc</p></td>
<td class="parameter_description"><p>pointer to the SSRC. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-rtp-source-meta-set-ssrc.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> on success, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
</div>
<p class="since">Since: <a class="link" href="ix03.html#api-index-1.16">1.16</a></p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstMeta-for-RTP.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstRTPSourceMeta"></a><h3>struct GstRTPSourceMeta</h3>
<pre class="programlisting">struct GstRTPSourceMeta {
  GstMeta meta;

  guint32 ssrc;
  gboolean ssrc_valid;
  guint32 csrc[GST_RTP_SOURCE_META_MAX_CSRC_COUNT];
  guint csrc_count;
};
</pre>
<p>Meta describing the source(s) of the buffer.</p>
<div class="refsect3">
<a name="GstRTPSourceMeta.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstRTPSourceMeta.meta"></a>meta</code></em>;</p></td>
<td class="struct_member_description"><p>parent <a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="GstRTPSourceMeta.ssrc"></a>ssrc</code></em>;</p></td>
<td class="struct_member_description"><p>the SSRC</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> <em class="structfield"><code><a name="GstRTPSourceMeta.ssrc-valid"></a>ssrc_valid</code></em>;</p></td>
<td class="struct_member_description"><p>whether <em class="parameter"><code>ssrc</code></em>
is set and valid</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="GstRTPSourceMeta.csrc"></a>csrc</code></em>[GST_RTP_SOURCE_META_MAX_CSRC_COUNT];</p></td>
<td class="struct_member_description"><p>pointer to the CSRCs. </p></td>
<td class="struct_member_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstRTPSourceMeta.csrc-count"></a>csrc_count</code></em>;</p></td>
<td class="struct_member_description"><p>number of elements in <em class="parameter"><code>csrc</code></em>
</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix03.html#api-index-1.16">1.16</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GST-RTP-SOURCE-META-MAX-CSRC-COUNT:CAPS"></a><h3>GST_RTP_SOURCE_META_MAX_CSRC_COUNT</h3>
<pre class="programlisting">#define GST_RTP_SOURCE_META_MAX_CSRC_COUNT 15
</pre>
</div>
</div>
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